Should I use the name "Enter" or "Return" key?

I'm trying to list the what various keys do inside the documentation for my CLI program, but I'm not sure what to refer to this key as. It is commonly referred to as either Enter or Return, but which is considered better UX? I was going to list it as Enter/Return, but that seems sloppy.

A Google search seems to indicate that Enter is more prevalent. However, my laptop gives different results - while having both enter and return on it, return is printed in larger text on the key and is placed closer on the key to the user.

How should I refer to this key?